On April 23rd, the SEC provided notice of the New York Stock Exchange’s and NYSE MKT’s individual filing of proposed amendments to their respective rules to codify certain traditional Trading Floor functions that may be performed by Designated Market Makers ("DMMs"), to make exchange systems available to DMMs that would provide DMMs with certain market information, to amend the respective exchange’s rules governing the ability of DMMs to provide market information to Floor brokers, and to make conforming amendments to other rules. Comments should be submitted within 21 days after publication in the Federal Register, which is expected during the week of April 29.